Backstory spoilers here only.
The back of the map featured some Sheikah script that an industrious bunch of fans managed to translate into Japanese, and then into English to reveal details of the game’s backstory and the events that took place 100 years prior to Link waking up at the start of the game.
The text on the map reads:
“Hylians pass stories of a destined time long past where multiple races lived and worked together in harmony. The Sheikah Tribe’s blue aura breathed through the land and this mutual prosperity continued until a cataclysmic disaster stuck. The Hero and the Princess attempted to seal the terror which became known as the Calamity Ganon. Divine beasts awoke from four directions and deployed a mechanical army which made the King and his people fearful. They fractured Ganon’s power and sealed him but the Sheikah were banished from the land ever since”
YouTuber Zeltik worked with other community members on the translation and he goes into more detail in his video above.
The backstory sounds pretty interesting and goes some way to explaining the current state of the kingdom.
The Legend of Zelda: Breath of the Wild launches on March 3 alongside the Nintendo Switch.